Motor-Works™ Build your own working engine!$31.95 Perfume Science Experiment with countless fragrance combinations.$60.95 Creative Cosmetics The Science of Skincare Ages 12+.$59.95 Physics Workshop Force = mass x acceleration — and factor in the fun.$54.95 Smithsonian® Mega Science Lab™ Perform over 1,000 exciting experiments and procedures! Ages 10+$30.00 Disgusting Gags and Pranks Concoct a stink bomb, make itch powder from scratch, and much more!$21.95 Assorted Science Kits $21.95 Fun With Your Dog or Cat Science Kit Learn about the biology and psychology of Dogs & Cats.$21.95 Mind Blowing Science Mind blowing experiments to delight and educate.$21.95 Sci-Fi Slime Make slime that's out of this world!$21.95 Perfumery The art and science of mixing perfume. Ages 8+$21.95 My First Geology Kit Start your own rock collection. Ages 4+$21.95 75 in one Electronic Lab NO TOOLS OR SOLDERING REQUIRED! Ages 10+.$49.95 10-in-1 Electronic Lab Build a Morse code telegraph, a burglar alarm, and a radio that really works! Ages 9+.$29.95 Snap Circuits JR Contains over 30 parts. Build over 100 exciting projects.$29.95 Snap Rover Have FUN building your own RC Snap RoverTM.$79.95